
 

#include "adc.h"
//#include "usart.h"

void ADC1_Init(void)
{

	GPIO_InitTypeDef GPIO_InitStructure;
	ADC_InitTypeDef ADC_InitStructure;
	
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_ADC1,ENABLE);
	
	RCC_ADCCLKConfig(RCC_PCLK2_Div6);
	
	GPIO_InitStructure.GPIO_Pin=GPIO_Pin_5|GPIO_Pin_6;   
	GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AIN;   
	GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
	GPIO_Init(GPIOA,&GPIO_InitStructure);
	
	// ADC????
	ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;   
	ADC_InitStructure.ADC_ScanConvMode = DISABLE;   
	ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;   
	ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;   
	ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;   
	ADC_InitStructure.ADC_NbrOfChannel = 1;   
	ADC_Init(ADC1, &ADC_InitStructure);   
	
	ADC_Cmd(ADC1, ENABLE);   
	

	ADC_ResetCalibration(ADC1);   
	while(ADC_GetResetCalibrationStatus(ADC1));   
	
	ADC_StartCalibration(ADC1);   
	while(ADC_GetCalibrationStatus(ADC1));   

	ADC_SoftwareStartConvCmd(ADC1, ENABLE);   
}


u16 Get_ADC_Value(u8 ch,u8 times)
{
	u32 temp_val = 0;
	u8 t;
	ADC_RegularChannelConfig(ADC1, ch, 1, ADC_SampleTime_239Cycles5);			    
	
	for(t=0;t<times;t++)
	{
		ADC_SoftwareStartConvCmd(ADC1, ENABLE);   
		while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC ));   
		temp_val+=ADC_GetConversionValue(ADC1);

	}
	return temp_val/times;
} 

